Supergirl season 2 has gone on a long hiatus and will return with new episodes on Monday (24 April) on The CW. The network has released a promo and full plot synopsis for episode 18 titled Ace Reporter.

Rahul Kohli from The CW's show iZombie will guest star in the episode, where Kara will use her reporter's skills to solve an intricate case involving Lena Luthor.

Executive producer Andrew Kreisberg spoke to Entertainment Weekly, on whether Lena Luthor can be trusted, given that she is Luthor by blood. He explained, "That's Lena's journey for the series. Are we who others think we are? Are we who we want to be? She's not adopted, she's actually truly a Luthor by blood, and is it nature vs. nurture? The audience's perception of a character named Luthor mirrors the characters' perception. 'If your name is Luthor, you must be bad. That name is synonymous with evil.'"

Comparing Supergirl and Superman, Kreisberg continued, "Watching every character have their moment with her where they doubt and do they believe, it's so interesting. Even Clark [Tyler Hoechlin], when we had Superman on, didn't trust her because of that name."

The producer added, "It's the difference between Kara and Clark, in our interpretation of these characters, is that Superman is a little jaded after doing this for so long, and Kara is still wide-eyed and fresh-faced and still believes in the goodness in people. Whether or not Kara and Supergirl's belief in Lena is going to be enough to overcome the corrupting influence of Lillian is the plot of the series."

The official synopsis for the chapter reads as follows:

Lena's (Katie McGarth) ex-boyfriend, Jack Spheer (Rahul Kohli), comes to National City to unveil his big breakthrough in nano-technology, which has the potential to eradicate all diseases. Lena asks Kara to attend Jack's conference with her for support. When Kara sees Snapper (guest Star Ian Gomez) in attendance she's inspired to tap back into her reporter skills and questions Jack on his discovery, which ultimately leads to a bigger investigation that puts everyone in danger.